Struct Rotation

Represents an rotation in the x-y plane. Despite the fact this is labelled rotation, it also includes reflections as well.

Implements
Namespace: DeBroglie.Rot
Assembly: DeBroglie.dll
Syntax
public struct Rotation : IEquatable<Rotation>

Constructors

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Rotation(int, bool)

Declaration
public Rotation(int rotateCw = 0, bool reflectX = false)
Parameters
Type Name Description
int rotateCw
bool reflectX

Properties

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IsIdentity

True for the default constructed rotation, that doesn't do anything.

Declaration
public bool IsIdentity { get; }
Property Value
Type Description
bool
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ReflectX

If true, this "rotation" also includes a reflection along the x-axis. The reflection is applied before doing any rotation by RotateCw.

Declaration
public bool ReflectX { get; }
Property Value
Type Description
bool
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RotateCw

Rotation in degrees, clockwise (assuming a y-down co-ordinate system, typically used for 2d graphics).

Declaration
public int RotateCw { get; }
Property Value
Type Description
int

Methods

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Equals(Rotation)

Declaration
public bool Equals(Rotation other)
Parameters
Type Name Description
Rotation other
Returns
Type Description
bool
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Equals(object)

Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
object obj
Returns
Type Description
bool
Overrides
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GetHashCode()

Declaration
public override int GetHashCode()
Returns
Type Description
int
Overrides
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Inverse()

Returns the rotation that rotates back from this one. i.e. r.Inverse() * r gives the identity rotation for all Rotation objects.

Declaration
public Rotation Inverse()
Returns
Type Description
Rotation
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ToString()

Declaration
public override string ToString()
Returns
Type Description
string
Overrides

Operators

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operator ==(Rotation, Rotation)

Declaration
public static bool operator ==(Rotation a, Rotation b)
Parameters
Type Name Description
Rotation a
Rotation b
Returns
Type Description
bool
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operator !=(Rotation, Rotation)

Declaration
public static bool operator !=(Rotation a, Rotation b)
Parameters
Type Name Description
Rotation a
Rotation b
Returns
Type Description
bool
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operator *(Rotation, Rotation)

Returns the rotation which is equivalent to rotating first by b, then by a.

Declaration
public static Rotation operator *(Rotation a, Rotation b)
Parameters
Type Name Description
Rotation a
Rotation b
Returns
Type Description
Rotation

Implements